Mengubah pecahan biasa menjadi pecahan desimal
Pecahan persepuluh adalah pecahan dengan nilai penyebut = 10
Ubahlah pecahan persepuluh berikut ini menjadi pecahan desimal
(1) \(\dfrac{1}{10}\)
\(\color{blue}\dfrac{1}{10}= 0,1\)
(2) \(\dfrac{3}{10}\)
\(\color{blue}\dfrac{3}{10}= 0,3\)
(3) \(\dfrac{4}{10}\)
\(\color{blue}\dfrac{4}{10}= 0,4\)
(4) \(\dfrac{7}{10}\)
\(\color{blue}\dfrac{7}{10}= 0,7\)
(5) \(\dfrac{9}{10}\)
\(\color{blue}\dfrac{9}{10}= 0,9\)
(6) \(\dfrac{1}{2}\)
\(\color{blue}\dfrac{1}{2}= \dfrac{1\times 5}{2\times 5} = \dfrac{5}{10} = 0,5\)
(7) \(\dfrac{1}{5}\)
\(\color{blue}\dfrac{1}{5}= \dfrac{1\times 2}{5\times 2} = \dfrac{2}{10} = 0,2\)
Pecahan persepuluh adalah pecahan dengan nilai penyebut = 100
Ubahlah pecahan perseratus berikut ini menjadi pecahan desimal
(1) \(\dfrac{1}{100}\)
\(\color{blue}\dfrac{1}{100}= 0,01\)
(2) \(\dfrac{3}{100}\)
\(\color{blue}\dfrac{3}{100}= 0,03\)
(3) \(\dfrac{6}{100}\)
\(\color{blue}\dfrac{6}{100}= 0,06\)
(4) \(\dfrac{8}{100}\)
\(\color{blue}\dfrac{8}{100}= 0,08\)
(5) \(\dfrac{9}{100}\)
\(\color{blue}\dfrac{9}{100}= 0,09\)
(6) \(\dfrac{13}{100}\)
\(\color{blue}\dfrac{13}{100}= 0,13\)
(7) \(\dfrac{29}{100}\)
\(\color{blue}\dfrac{29}{100}= 0,29\)
(8) \(\dfrac{7}{25}\)
\(\color{blue}\dfrac{7}{25}= \dfrac{7\times 4}{25\times 4} = \dfrac{28}{100} = 0,28\)
(9) \(\dfrac{3}{50}\)
\(\color{blue}\dfrac{3}{50}= \dfrac{3\times 2}{50\times 2} = \dfrac{6}{100} = 0,06\)
(10) \(\dfrac{9}{20}\)
\(\color{blue}\dfrac{9}{20}= \dfrac{9\times 5}{20\times 5} = \dfrac{45}{100} = 0,45\)
Pecahan persepuluh adalah pecahan dengan nilai penyebut = 100
Ubahlah pecahan perseribu berikut ini menjadi pecahan desimal
(1) \(\dfrac{1}{1000}\)
\(\color{blue}\dfrac{1}{1000}= 0,001\)
(2) \(\dfrac{3}{100}\)
\(\color{blue}\dfrac{3}{1000}= 0,003\)
(3) \(\dfrac{6}{1000}\)
\(\color{blue}\dfrac{6}{1000}= 0,006\)
(4) \(\dfrac{7}{1000}\)
\(\color{blue}\dfrac{7}{1000}= 0,007\)
(5) \(\dfrac{41}{1000}\)
\(\color{blue}\dfrac{41}{1000}= 0,041\)
(6) \(\dfrac{99}{1000}\)
\(\color{blue}\dfrac{99}{1000}= 0,099\)
(7) \(\dfrac{121}{1000}\)
\(\color{blue}\dfrac{121}{1000}= 0,121\)
(8) \(\dfrac{237}{1000}\)
\(\color{blue}\dfrac{237}{1000}= 0,237\)
(9) \(\dfrac{3}{125}\)
\(\color{blue}\dfrac{3}{125}= \dfrac{3\times 8}{125\times 8} = \dfrac{24}{1000} = 0,024\)
(10) \(\dfrac{11}{250}\)
\(\color{blue}\dfrac{11}{250}= \dfrac{11\times 4}{250\times 4} = \dfrac{44}{1000} = 0,044\)
(11) \(\dfrac{113}{500}\)
\(\color{blue}\dfrac{113}{500}= \dfrac{113\times 2}{500\times 2} = \dfrac{226}{1000} = 0,226\)